Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758211Ab0LTWIW (ORCPT ); Mon, 20 Dec 2010 17:08:22 -0500 Received: from mail-px0-f179.google.com ([209.85.212.179]:55641 "EHLO mail-px0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758181Ab0LTWIV (ORCPT ); Mon, 20 Dec 2010 17:08:21 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=Vagk+iGtA5z+lyRxMVHnbB6GIHiLE/UMozmzk/nbsEH8zFdIWRWhAoVwsMsAeIhiqP 4iifeFjsQ/3u4YIjOv9OSxrPbTsHkly+QdUImxqrJEsrnNb1vOmfcjAJXffT2YSd/1Ow VV+PErtlzkME+WS+KdvNOlKFUKZg7spAkauys= MIME-Version: 1.0 In-Reply-To: <1292866298-8585-1-git-send-email-per.forlin@stericsson.com> References: <1292866298-8585-1-git-send-email-per.forlin@stericsson.com> Date: Mon, 20 Dec 2010 23:08:19 +0100 X-Google-Sender-Auth: 8C3RMQyRmgb_iOArFObU9OfoDZw Message-ID: Subject: Re: [PATCH] dmaengine: dma40: Add support to split up large elements From: Linus Walleij To: Per Forlin Cc: Dan Williams , linux-kernel@vger.kernel.org, Per Forlin Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 758 Lines: 21 2010/12/20 Per Forlin : > The maximum transfer size of the stedma40 is (64k-1) x data-width. > If the transfer size of one element exceeds this limit > the job is split up and sent as linked transfer. > > Signed-off-by: Per Forlin Acked-by: Linus Walleij I think this could actually go into 2.6.37 series: I consider it a bug fix since the transfer size limitation breaks the contract of the memcpy() API. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/